خواندن بعدی
Traditional Metal Identification Techniques
Pressure vessel design is not in my scope of work, but I have often had the need to know its components. I think this is a necessity for many other engineers with various specialties. Below pages reference: Pressure Vessel Design …
کانی آویسنیت (Avicennite) که نوعی اکسید تالیم است در سال 1958 میلادی کشف شد و به افتخار دانشمند ایرانی، پورسینا …
Core Material for Steel electrodes
